Radiator



May 2? 1924. 1,495,319

E. B.y CORCORAN RADIATOR Filed April 2. 1919 Zayezz for.'

Patented Z7, 1924.

EVISwAIin B'. c'oRcolRAN, ono'INcINNAfrr, oHIo.

RADIATOR.

Application filed April 2,

To all whom t may concer/1t:

Be it knovvnthat LEDWARD a citizen of tlie United States, and aresident of Cincinnati, in the county of- IIamilton and State of Ohio, have invented certain new and useful Improvements in Radiators,- of which the following is a full, clear,; and exact description, reference being hadto the accompanying drawing, forming part of this specification. l

My invention relates to honeycomb type radiators which are made up of sheets vof metalcorrugated in a special manner andl set` together so as to form vertical Water passages and' transverse air passages. Such radiators as used in automobiles are connected at the top with a Water tank, and at the bottom With alike tank, and means are provided to cause a circulation of Water from the bottom tank around theengine to `the top tank and thence down the Water pas sages Where it iscooled by the air passing through the transverse air passages.

The metal used in radiators of this type in forming up the core, as the cooling section is called, is uniformly of some copper composition such as brass. This'` material is quite expensive and hence the saving ofy a small amount of' metal in a radiator is a considerable saving in core construction. One of the objects of my invention isto so construct the metal sheets that they Will'provide the maximum of cooling area With the smallest amount of brass.

Hitherto there have been efforts'v madeto construct a radiator which hadv the maximum cooling surface,` but in these radiators the embossing and excessive corrugation resulted in a' structure which lacked stiffness. Thus I desire herein to provide a radiator of the honeycomb type which has the maximum of stiffness as Well as the sufficient cooling surface.

According'to my invention herein, I do more than provide a uniform shoulderfor the edges of the sheets, as customary in the art, since in every alternate lateral Wall of each strip I provide a' further transverse depression,-Which serves to extend the Water cont'aining'volume'of the radiator core When made up, by just the amount of space that is cleared by these extra depressions. The extra depressions also abut against each other, which by the amount of space transverse the core that is taken up, cuts down the number of units necessary to make up B. vCoRocasiv,'

1919. serial No.l 28s-,861.

thecore and saves brass in the manufactur-` 111g, t l

Asavilly beshown, I also form central bend in these extra depressions to permit 4a small space teintervene between theabutting faces of the same, therebypermitting a vertical 'passage for air, and increasing radiating space. v t

The above briefly noted f'eaturesi'of construction and thedetails generally yofmy radi-atorcore, together with its advantages Will be hereinafter more specifically pointed outI and claimed.

I n theldravving,

theradiator,l aportionof Which isin section to show the interior construction."

, Figure Q isa vertical section through the core showing in elevation` the air tube por tions of a unit,l and partly broken away at the base to show a Water tube portion..l

lliligfurel 3 is a. detail perspective view of several vassembled lsheets in the core.

The preferred form of unit used vin' makff ing up my neW'core consistsn cfal specially corrugated sheet of metal turned back on itselfy and lapped over at the ends to forin fa closed'member, although tvvo separate strips couldbe used to make upV one unit. v,They pieces of metal are'. preferably rolled out in one operation and then ycut in desired lengths, bent 4double and their ends lapped'. The pieces as made'up form the air passages and are placed together so as to form Water passages, with the air passages horizontal and the Water' passagesvertical. Y" Of course the pieces could Vbe set togetherfv diagonally ofA the completed core,Y but this would be moreexpensive to make up.

The strips are rolled out so `vas to be in, the form of a half hexagon, with the 'lateral faces 1 and 2, and the shoulders 3 terminating infthe raised 'edge portions 4. As constructed so far, the core pieces would correspond to structures which have been in usey prior to ymy invention, In addition to ythe above folds inl the metal,`ho\vever,-I provide for every alternate lateral face, i.' e. the faces 2, anad'ditional bending of thefmetal afway'from the raised edges,v this additional bending extending substantially across from one shoulder' to the opposite o-ne, said face 2 being dented in at 5 toward its central point.

The metal strips so rolled are then bent back on each other, and the sides 2 placed .i j 70 Figure l is a front elevation of a part'y of unit.

opposite sides 2, so that the exta deep shoulders 2a formed by the additional bend as above described abut against each other.

A number ot' the units so formed are then placed together in what might be Atermed staggered relation with sides l of one unit adjacent to sidesQ of the next unit, and with the edges 4t abutting each other closely throughout. The core so made up is dipped in solder which permanently unites the abutting edges,fboth front and back, and thereby seals up the water passage, which runs vertically between the units as shown at A (Figure l), the air passages B being through the space intermediate the walls l in the units, and air also being permitted a -vertical path through the spaces left by the central bend oi the walls 2, as shown at C (Figure 3).

ln Figure 3 are shown parts of two oi' the units fitted together. lt will be noted that by reason yof lthe deep depression 2 when a single unit is formed, the upper and lower edges ot' the raised portions i which approach each other do not come together but are spaced away by the depressions 2a which abut each other. These depressions 2a are a deepening of the shoulders 3. Now when the next unit is placed in staggered relation with the sides l of one unit adjacent to thesidesQ of the next unit, by reason ot' the tact that the approaching sides of each separatey unit do' not come together, the several units when put together' will occupy more space than in the construction o'lI the prior art where the contiguous walls o'ii each unit come much closer together. llloreover when the units are assembled in the alternate relation. the side 2 comes into juxtaposition with the side 'l ot the next Extra water space is therefore prorided toward each outer portion o'l the units.

Due to the tact that the met-al is drawn clear across tl e strips in forming the faces 2, with their extra deep shoulders 2, there is no substantial weakening of the metal, which weakening would undoubtedly be present it' mere knobs or buttons were torined in the walls 2, instead o'l drawing out the entire walls.

The central bends in the walls or faces 2 also permit Vvertical passage ot air through the units. although it cuts down to some extent the water passage intern'iediate the walls l and walls 2 ot adjacent units.

The extra deep shoulders and the constituent ot strength above noted term a strong abutment across the radiator core in raeasie the portion intermediate its ends, whereas, as l am informed, radiators of the past rely upon the raised edges alone for this cross abutment.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent, is:

l. A radiator core comprising units coinposed oi metal strips formed in alternate projections and depressions, and with shoul- `ders adjacent the edges, thereby providing raised edgey portions, said strips bent baci; on each other, and the units set together in staggered relation to form a core, said units having additional depressions formed in their strips inside and adjacent to the said shoulders to provide supports for said core transverse thereof, in addition to said raised edge portions, for the purpose described.

2, fr radiator core comprising units coinposed of metal strips formed in alternate projections and depressions, and with shoulders adjacent the edges, thereby providing raised edge portions, said strips bent back on each other, and the units set together in staggered reiation to form a core, said units having additional depressions iormed in their strips inside and adjacent the said shoulders to provide supports for said core transverse thereof, in addition to said raised edge portions, said depressions extending transverse the units and set abutting each other, said extra depressions being formed also with intermediate return bends to provide for vertical passage ot air through said units.

BI'L radiator formed oiL corrugated metal in honey-comb type and having expanded ends for the corrugations, and air passages horizontally oi the radiator, and water passages'vertically thereof, with the expanded ends oit the corrugations at sonie points more deeply drawn than at others whereby the water passages are extended' in width by interspaced extra extensions oif the cor rugatio'ns, as and for the purpose described.

et. radiator i'r'ormed ot corrugated metal in honeycomb type and having expanded ends Ytor the (.foriugations, air passages hori- Zontally ot the radiator and water passages vertically thereof, with the water passages extended in width by interspaced extra deep drawing ot the expanded ends olE the corrugations ot the radiator and constriced by intermediate corrugations ot the metal intermediate the ends.

EDl/VAVRD B. CORCORAN. 

